Boletín de aludes

Jasper

Apr 24 – 25, 2018Parks Canada
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Archivado · caducó 8 years ago

Peligro de aludes

Thu
Fri
Alta montaña
Sin grado
Límite del bosque
Sin grado
Bajo el límite
Sin grado
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Lo esencial

Avalanche control is planned for Parker ridge area in late afternoon on Wednesday. Check Alberta 511.

Problemas de aludes

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1.5–3
    Rising temperatures are causing cornices to fall triggering slopes below. Give them a wide berth.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    2–3
    Triggering this slab would have serious consequences. Cornice failures are acting as triggers.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2.5
    The next few nights and days will be progressively warmer increasing the probability of loose wet avalanches. Start and end early plus be vigilant of overhead hazard as these avalanches have been gaining mass and running far.

Weather Forecast

This week will be sunny and very warm. Wednesday will be 2600m freezing level but then rise up to 3500m Thursday and Friday.

Snowpack Summary

Sun or temperature crusts extend to treeline and into the alpine on southerly slopes. Persistent slabs can be found on most aspects at treeline and above. These have been reactive to large triggers like cornice failures. Below 1,900m the snowpack is going isothermal on a daily basis.

Avalanche Summary

Tuesday observed a few loose wet avalanches below treeling up to the low alpine. Also a couple of fresh size 2-2.5's slabs were noted in the alpine. The mountains are waking up with the rising temperatures.

Confidence

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